21294105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1459}}^1$

素因数の和:1613

約数の個数: 32

約数和(自身を含む): 39244800

約数和(自身を除く): 17950695

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 139, 417, 695, 973, 1459, 2085, 2919, 4377, 4865, 7295, 10213, 14595, 21885, 30639, 51065, 153195, 202801, 608403, 1014005, 1419607, 3042015, 4258821, 7098035, 21294105]

約数ペア:

[(1, 21294105), (3, 7098035), (5, 4258821), (7, 3042015), (15, 1419607), (21, 1014005), (35, 608403), (105, 202801), (139, 153195), (417, 51065), (695, 30639), (973, 21885), (1459, 14595), (2085, 10213), (2919, 7295), (4377, 4865)]